#1C3186#1C3186

#1C3186 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.144 H 267.5°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#1C3186
RGB	rgb(28, 49, 134)
HSL	hsl(228, 65%, 32%)
HSV	hsv(228, 79%, 53%)
CMYK	cmyk(79.1%, 63.4%, 0%, 47.5%)
CIE-LAB	lab(24.21, 24.43, -49.86)
CIE-LCH	lch(24.21, 55.53, 296.10°)
OKLab	oklab(35.6% -0.0062 -0.1442)
OKLCH	oklch(35.6% 0.144 267.5)
XYZ	xyz(5.8788, 4.1641, 23.0435)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3186 #86711C

analogous

#1C6686 #1C3186 #3C1C86

triadic

#1C3186 #861C31 #31861C

tetradic

#1C3186 #861C66 #86711C #1C863C

square

#1C3186 #861C66 #86711C #1C863C

split-complementary

#1C3186 #863C1C #66861C

monochromatic

#070C21 #111E53 #1C3186 #2744B9 #4462D8

Accessibility & contrast

On white

11.46

#1C3186 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1C3186 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3186

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3186	#FFFFFF	#000000	##FFFFFF
##1C3186	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F89

Deuteranopia (green-blind)

#003584

Tritanopia (blue-blind)

#004756

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1c3186;
/* rgb */ color: rgb(28, 49, 134);
/* oklch */ color: oklch(35.6% 0.144 267.5);

Tailwind

colors: {
  custom: {
    50: '#6a68aa',
    500: '#1c3186',
    950: '#000000',
  },
}

SCSS

$custom: #1c3186;
$custom-light: #6a68aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3186",
  "rgb": {
    "r": 28,
    "g": 49,
    "b": 134
  },
  "hsl": {
    "h": 228.113,
    "s": 65.432,
    "l": 31.765
  },
  "oklch": {
    "l": 0.356,
    "c": 0.14429,
    "h": 267.5
  },
  "luminance": 0.04165
}

Semantic roles & 50–950 ramp

primary

#1C3186

secondary

#B9A245

accent

#C73FE8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1C3186

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →